Originally Posted by bianchi_rider
someone has to know something, come on guys !!!!!
The seller of the item I posted doesnt know if its 105 compatable.
Give me a link, give me a clue, come on guys .............

No. That will not work. Those are only for the Nexave group. What shifters do you have? Are they FD-compatible? Do they have little buttons on the hoods? Also check on the inside under the hood grip and there should be a small removable cover where the interface mounts go.
You will need either the SM-6501 (wireless) or SM-6500-RS (wired).